Vulnerability Description
LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a __reduce__ method to execute arbitrary code with Config Server process privileges.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/ModelTC/LightLLM/blob/v1.2.0/lightllm/server/config_server/ap
- https://github.com/ModelTC/LightLLM/issues/1563
- https://github.com/ModelTC/lightllm
- https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remo
- https://github.com/ModelTC/LightLLM/issues/1563
FAQ
What is CVE-2026-90919?
CVE-2026-90919 is a vulnerability with a CVSS score of 9.8 (CRITICAL). LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.l...
How severe is CVE-2026-90919?
CVE-2026-90919 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-90919?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.